Welcome to Biomesfirst08 Coral reef page written and edited by Jamie C. and Raveen M.


Coral Reefs are found in many places in the world. They cover 284,300 sq. km. They are located in the Indo-Pacific region that includes the Red Sea, the Pacific Ocean, and the Indian Ocean. These oceans house more than 91.9% of all coral reefs in the world. Southeast Asia alone has 32.3% of all coral reefs. The Pacific Ocean has 40.8% of all coral reefs, while the Atlantic Ocean and Caribbean Sea have only 7.6% combined. The west coast of the Americas and the west coast of Africa do not have coral reefs because of cold ocean currents that run along them.

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The Coral Reef Biome is mainly centered in the Indian and Pacific Oceans, and the South China Sea

The Coral Reef has an average temperature from 25-31 degrees Celsius. The Coral Reef is in the Epipelagic or Photic zone of the ocean. A lot of animals live here, and plants thrive because there is enough light for photosynthesis. There are no layers within the Coral Reef biome; all of them are in the Epipelagic zone. There are a lot of factors in where Coral Reefs are found. There are very few Coral Reefs on the Western coasts of Africa, North America, and the South Asian coastline because of strong, cold, ocean currents. There are no coral reefs around the Northeast, South American area because of the large quantities of fresh water coming in with the Amazon River. The same is true on the Bangladeshi Coast, with the Ganges River. Atolls are mainly found in the central regions of the Pacific Ocean. Barrier Reefs are mainly found in the East Australian Coast, the South China Sea, and around the SE Asia regions. Fringing Reefs are widespread, with its main location in the Caribbean Sea/Americas, the Middle East, and the Pacific Ocean/South China Sea area. Coral Reefs form in depths of less than 27 meters or 81 feet. They require a salinity level of 34-37 per 1000. Since there are no different layers of the coral reef, here are the seasons: the wet season is from November to April, and the dry season occurs during the rest of the year. The organisms living there are most active in the wet season as shown below in the pictures.


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This is a coral reef in the wet season, full of bustling, and busy life

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This is the same coral reef in the dry season. You can see that there is almost no activity below the surface.


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Click here for Coral Reef Food Web.
Click here for Coral Reef Conservation.
Click here for Coral Reef Bibliography.